<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<body>
<h2>Hello World!</h2>
<form action="${pageContext.request.contextPath}/test" method="get">
    用户名 <input type="text"name="username"><br>
    密码 <input type="password" name="password"><br>
    <input type="submit" value="提交">
</form>
</body>

</html>
